Box joints, also known as finger joints, are an effective and striking alternative to traditional dovetail joinery. Although the box joint is not mechanically interlocking like a dovetail, the joint is amazingly strong. Today's modern adhesives and the large glue surface make the box joint equally as strong as a dovetail throughout the life of the adhesive. Two sizes of box joints, 3/8" and 3/4" [9,5 and 19mm], are possible using the standard finger assembly of the D4R Pro, and the unique Leigh e-Bush provides the essential adjustment for absolutely perfect fit.

Here’s How

1 Use the supplied Leigh e7 guide bushing and 5/16" straight bit with your router. The guide bushing steers the router along the guide fingers.

2 All box joints are routed with the guide finger assembly in the half-blind tail mode.

3 The supplied spacer is used to space the guide fingers apart.

4 Rout around the guide fingers to form the pins.

5 The mating board is offset by the spacer positioned against the side stop.

6 Rout around the guide fingers to form the pin sockets in the mating board.